Toshiyuki Ueki

Megumi, a high school girl, had a playboy boyfriend, Mitsuru. On the train to a date with him, she was attacked by a group of men. Although she was late for the meeting, the intense pleasure changed Megumi.

A high school girl enjoys the attention of men on the trai. One day, she is soon surrounded by men, but then she sees a woman performing a lewd act. The woman is a female teacher whom the high school girl and her friend have a crush on.